Liquid seal and separator.



D. C. BAKER.

LIQUID SEAL AND SEPARATOR.

Patented May 30, 1916.

IN VENTOR eer fija/en WITNES sms rra as aa-NT DEXTER C. BAKER, OF OAKLAND, CALIFORNIA, ASSIG-NOR TOBAKERFHAN SEN MANU- FACTURING COMPANY, F OAKLAND,

FORNIA.

CALIFORNIA, A CORPORATION OF CALI- LIQUID SEAL AND sErARAToR.

' Specification of Letters Patent.

Patented May 30, 1916.

Application led November 417, 1914. Serial N o. 872,563.

To all whom it may concern.' v

Be it known that I, DEXTER C. BAKER, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented new and useful Improvements in Liquid Seals and "Separatore, of which the following is a specilication.

' This invention relates to a liquid-seal and separating attachment for rotary pumps, compressors, and the like.

It is one of the objects of the present in? vention to provide a liquid circulating attachment for rotary pumps, compressors, and the like which is primarily adapted to circulate suiiicient liquid through the pump to form a seal between thecylinder and pis. ton vanes.

Another object of the invention is to provide'means for separating the sealing liquid from the air before this is inally permitted to discharge, and to provide means for regulating the volume of liquid circulated through` the pump or compressor.

Further objects will hereinafter appear.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanyinO drawings in which-.

iigure 1 is a side elevation, partly in section, showing the application of the invention to a rotary type of compressor. Fig. 2

is a cross section of the separating chamber on line 2-2, Fig. 1. Fig. 3 isa transverse vertical'section on line 3 3, Fig. 1.

More particularly described, A indica-tes the cylinder, 2 the piston, 3 the vanes, 4 the intake port and 5 the exhaust or discharge port'o a suitable form of rotary compressor. Connected with the exhaust port by means of a nipple 6' is a casting 7 in which is formed an interior chamber 8, and formed interior of the chamber is a baffle plate 9 and a stand-pipe 10. Pipe 10 extends nearlyy to the. top of the chamber and the lower -end of same is connected with nipple 6. The' casting is otherwise provided with a inal outlet opening 11 positioned on the opposite side'of baffie plate 9 with which the service pipe 12 is connected, an oil level gage 13, and an oil outlet opening 14 which is connected through a pipe 15 with anair intake pipe 16 connected with the intake port 4 of the compressor. Pipe 15 is provided with a regulating valve 17 for purposes hereinafter to be described.

Chamber 8 is irstof all provided asa reservoir for the sealing liquid .which is circulated throughV the compressor, and sec'- ondly as a trap for separating the sealing I liquid from the air discharging from the compressor.

In "operation,

is partly iilled with oil or any other suitable form of liq- -uid which is suitable both for .sealing and lubricating purposes, the oil level being indicated or controlled 13. The compressor is then started and valve 17 opened. A flow of oil is thus permitted through pipes 15 and 16 and this cil 'will enter the cylinder with the incoming quantity ofxcil thus admitted beingy f regulated-by valve v17 and should be suf' air; the

ficient to form a seal between the vpiston yvanes, with connected rotating parts, and

of the functions ofchamber 8 is to separate the oil from the air to prevent it from passing out with the air into the service pipes Where it would be lost and might be detrimental. The oil in the form of a spray discharging with the air against the upper surface in chamber 8 will, practically speaking, condense or collect on same and trickle down the sides and collect in the lower end of the chamber. The air will then pass in a downward direction under baffle 9, as indicated by arrow a, and will then finally escape through service pipe 12. The oil is thus thoroughly separated from the air and will constantly collect in the lower part of chamber 8 where it is again permitted to escape through pipes 154 and 16 to be again circulated through the compressor. The operation or circulation of oil through the com` pressor for the purposes specied is thus continuous and the loss or escape of oil through pipe 122 is so small that it is only necessary to replenish the supply in chamber 18 at great intervals. The oil thus circulated does not only form a perfect .seal

by the position of gage between the 4cylinder wall and the several rotating parts, but also forms an automatic lubricating,r system which is not only simple and automatic in action but also greatly increases the efficiency. and life of the com'- presser.

The materials and finish of the several parts of the device are such as the experiA ence and judgment of the manufacturer may dictate.

I wish it understood that various changes in form, proportions, and minor details of construction may be resorted to within the scope of the appended claims and that I do not wish to limit myself tothe specific de sign and construction here shown.

Havingthus described my invention, what I claim and desire to secure by Letters Iatent is- 1. A separator for-air compressors including a chamber having an outlet in its top and having its said top arched at one side of the outlet, a baille plate connected to the top at the center thereof and' extending downwardly therefrom and terminating in 'spaced relation to the bottbm of the chamber, said baiiie plate being disposed between the-outlet and arched top. to separate same, and a discharge pipe on one side of the baille plate and abutting` the lat-ter and terininating adjacent the arched top so as to project the pipevdischarge against the arched top and in a direction opposite to the outlet so as to cause the discharge to course downwardly on one side of the baffle and then pass under the bale and up the opposite side of the latter prior to reaching the outlet. l

' whichthe outlet is located and having a, dis

charge located adjacent the top of the cham4 ber to allow thedischarge to engage the side of the chamber adjacent said pipe prio;` ic passing beneath the baHe.

3. In a separator, a chamber having: an

outlet on one side thereof, a baille extending down from the top and disposed between. said outlet and the other side of the chainber, the lower end of the baflie terminating' in spaced relation to the bottom of the chamber, and an inlet pipe extending up through approximately'the center of the chamber bottom and terminating adjacent the top of the chamber and being disposed.

. on the side of the battle opposite to the side on which the outlet is located, said pipe exw tending across the space between the lower end of the baffle and the chamber bottom.

In testimony whereof I have hereunto set my hand in the presence of two subscribing;r witnesses.

DEXTER of BAKER. Witnesses:

G. J. HOFFMAN, Gr. T. GILLETTE. 

